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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
1" and 1 1/2"
14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U
Adjustable directional dampers with shut-off
Designed for large volume air delivery
Note: Sizes are Listed Nominal Duct Opening
Spiral Pipe Diffuser with Transition Box SD52-14X8G Residential Registers & Grilles 1" and 1 1/2"SD52 Transition Box Spiral Pipe Grille (Single Deflection) Standard Features Single deflection transition box mount spiral pipe grille Blades are parallel to the shortest dimension Allows for 2 way airflow adjustment Nylon bushings on adj. blades prevent metal on metal rattle Curved saddle with gasket provides airtight fit to spiral pipe Product sizes available to fit spiral pipe diameters 8 48." Spiral pipe diameter must be 4 larger than width of
